Concrete mixer



mman@ N. REIWVIEL. CONCRETE MIXER. FILED MAR. l 1920 narran iii @i NICHOLAS REMIVIEL, OF KEWASKUM, WISCONSIN, .ASSIGNOR TO REMMEL :MANUFAC- TURIN@ COMPANY, OF KEW'ASKUM, WISCONSIN.

CONCRETE MIXER.

Application filed March 1, 1820. Serial No. 362,371.

To @ZZ whom t may conce/rn.'

Be it known that I, NICHOLAS RnMMnL, a citizen of the UnitedStates7 and residentot' Kewaskuni7 in the county oi lvashington i. and State ot' l/Visconsin, have invented certain new and useful improvements in Con crete Mixers; and l do hereby declare that the following is a full, clear, and exact description thereoit.

My invention pertains to new and useiful improvements in mixing machines7 particularly those which are used 'for mining batches of concrete.

The primary object ot my invention is to provide a continuously drum driven concrete mixer which is perfectly balanced with reference to its load and tulcrum point and which is capable oi being adjusted to various angles during a mixing operation and also tiltable in two directions trom a vertical line for discharging.

another object oit my invention is to pro,- vide a driving connection for the drum whereby a power' belt is directed parallel to the pivotal point of the axis-r whereby cleard ance is obtained to permit free dumping ot the concrete in two directions with relation to the frame without interference from the driving` belt or its gear connections.

Another object ot my invention is to provide a single lever for oscillating the drum associated with means for loclriulsthe drum at predetermined angles upon either side of a vertical line .t'rom t ie axis ot the drum.

'further object ot my invention is to provide a simple, economical and effective train oif gearconnections between the power ulley and rcvolvable axis oit' the drum` whereby perfect balance is maintained and manuiiacturiug cost is reducedv to a miuimuni. ,Y

lilith the a beve and other objects in view the inventio consists in certain peculiarities of construction and combination ot parts :is are herein set 'forth with reference to the accompanying drawings and subsequent/al rlilmS.

In. the drawings:

Figure 1 represents a side elevation oit a concrete mixing drum exemplifying the features of my invention, with parts broken away and in section, to more clearly illus trate certain details of construction.

Figure 2 is a plan view of the same wit parts broken away and in section, to more clearly show the driving gear connection 'for revolving the drum.

Figure S3 represents an end elevation ot the drum with parts broken away, the side elevation showing the mea-ns 'for manipulating the drum about its swinging airis and for lockino the said drum at predetermined As best shown in Figures 1 and 2 the Vreach bar at one end is formed with a sleeve 4t having journalled thereon a counter-shaft 5 to which is secured a power pulley 6 and at the other end of this shaft is secured a bevelled gear 7. The bevelled gear 7 is meshed with a corresponding beveled gear 8 which. bevelled gear is formed integrally with the spur gear 9'. rlhe combined bevelled and spur is loosely mounted upon a journalled stud 107 which stud is supported in bosses upon opposite sides of the gear they outer boss constituting the terminal ot a ll shaped bracket 11, which springs trom the sleeve 4L of the reach bar.

A corresponding pintie stud 10 is sii-.pported by a boss .12 which. also forms a part of the reach bar at its opposite end7 this pintle stud being in axial alignment with'thc pintle stud 10. The inner ends ot the pint-le studs 10 and 10 constitute oscillatory bearings lor the upturned ends 13 ot a drum carrying yoke 14. The upturned end 13 oi the yoke. ,formed with a journalled box 15 for an arbor 1d which arbor is positioned parallel to the pintle studs 10 and 10. The arbor r16 has secured to its outer end a spur gear 9 which meshes with. the `vspur gear 9 and the inner end of the arbor carries a. bevelled pinion 17. it being understood, that the inner end oit the arbor has a bearing in a box 15 that springs from the body portion of the drum yoke 14.

The drum yoke 14 is formed with a vertical and centrally disposed journal box 18 for the reception of a spindle 19. The upper end of the spindle 19 is fastened within a hub 20, which hub constitutes a part of a circular bottom casting 2l of a mixing drum, the cylindrical side walls 22 ot which are secured to the bottom casting 2l in any suitable manner.

Forming an integral part vof the bottom casting 2l is a bevelled gear wheel 23, which gear wheel `meshes with the bevelled pinion 17 whereby rotary motion is imparted to the drum, it being understood that said drum has an open mouth and is adapted to be revolved to effect a proper mixture ot the concrete batch. Te insure an eticient mixture of the materials the inner walls 22 of the drum are provided with blades 22', as best shown in Figures l and 2.

In order to manually swing the mixing drum about its pintle axis, l provide a hand lever 23 having bowed terminals 23 which are in pivoted union with the lower portion of the yoke leg 13. This lever is also provided with a centrally disposed tooth 24, which tooth is adapted to entera slot 25, that is formed in an adjustable block 25', whereby upon swinging the lever in one direction., when the tooth is in alignment with the slot 25, the yoke together with the mixing drum is locked at a predetermined angle during a concrete mixing operation. rlhe block 25', as best shown in ligures 3 and 4, is mounted between ribs 26 of a circular support 27, which detent is bolted or otherwise secured to the upper portion of the reach bar 2 and surrounding its boss 12, as best shown in Figure 3, the detent is to 'ined with oppositely disposed circular slots 27 through which a retaining bolt 28 is fitted for the purpose ot-adjusting and locking the block 25. For example, it it is desired to operate the drum from the right hand side, as shown in Figure 3, the block is fitted to the detent upon that side ot the same, and adjusted so as to lock the 4drum at a predetermined angle and when the concrete mixture or batch is completed, the hand lever 23 is manipulated so as to release the drum trom its angular position whereby the contents of said drum may be dumped by swinging the same down to a discharging position.

Should it be desired to operate the drum upon the left hand side, as indicated at the dotted line X, the block is shifted to the opposite side ot the detent and the same operation with reference to locking and swinging the drum is eiiected. This change of direction in dumping the drum contents is desirable in some instances where the machine is in operation close to a wall, or where other conditions exist that would make it de* sirable to work from one side or the other, as for example, in some instances it may' be desired to dump the batch upon one side of the trame and then when the drum is locked for a second batch, during the interval of mixing, it can be swung over to the other side or" the trame and dumped in the opposite direction. Under these conditions the batches are discharged from opposite sides and time may be saved thereby.

TWhile l have shown and described only one exempliication of my invention in all its details, it is understood that I may vary such details within the scope of the claim.

I claim:

The combination of a reach bar, a pair of alined pivots carried thereby, a yoke rotatable on said pivots, a drum rotatable on said yoke, means for rotating said drum, a lever having bowed terminals thereon at their lower ends to said yoke, a tooth carried by said lever, a support on said reach bar having an arcuate `slot therein, a block, means securing said block in said slot, said means being releasable to permit adjustment ot said block in said slot, said block having groove therein whereby on the movement of said lever and the rotation of said yoke, said tooth may be inserted into said groove tor locking said drum in tilted position.

In testimony that I claim the foregoing l have hereunto set my hand at Kewaskum, in the county of Washington and State of Wisconsin NICHOLAS 

